I don’t have actual data, but I strongly suspect that emissions from actual well-designed wood stoves are negligible. The problem is wood-burning fireplaces, which are a whole different animal. If you want to heat your house with a high quality wood-fired heater, be my guest.

Nothing good will come of trying to heat your house with a wood-burning fireplace. They’re pretty, they’re fun, they crackle nicely, they combust wood very poorly, and they send almost all the heat right out the chimney. And, if they work correctly, lots of air comes out the chimney for the ride (keeping the combustion products out of the house), so a lot of makeup air comes in from outside, cooling your house.

If you want to heat your house by burning something, you want to capture as much of the heat of combustion as practical (preferably the higher heating value, which condensing boilers and furnaces can do, but the lower heating value is a good start), and you want to minimize the degree to which operating the heater forces you to replace conditioned air in the house with unconditioned outside air. A fireplace fails at this.